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Anna11 [10]
3 years ago
6

How does calcium obey the octet rule when reacting to form compounds?

Chemistry
2 answers:
wolverine [178]3 years ago
8 0
The answer is C. because it gives up two electrons.
Leya [2.2K]3 years ago
5 0

Answer: Option (C) is the correct answer.

Explanation:

Atomic number of calcium is 20 and its electronic distribution is 2, 8, 8, 2.

Therefore, a calcium atom contains two valence electrons and in order to attain stability it needs to lose two electrons.

Hence, it acquires a charge of +2 as Ca^{2+} by loss of two electrons.

As, according to the octet rule there must be eight electrons in the valence shell.

Thus, we can conclude that calcium obey the octet rule when reacting to form compounds as gives up electrons.

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Water is composed of one atom of oxygen and two atoms of
egoroff_w [7]

Answer:

<em>Hydrogen.</em>

Explanation:

You've probably seen "H_{2}0" which is the formula for water. It means that there's 2 hydrogen atoms, and one oxygen atom, in one molecule of water.

<em>Hope this helps! Feel free to mark me Brainliest if you feel this helped. :)</em>

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Fluorine-18 is a positron emitter used in pet scans. write a balanced nuclear equation for the reaction.
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3 years ago
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The specific heat of gold is 0.031 calories/gram°C and the specific heat of silver is 0.057 calories/gram°C. If equal amounts of
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aluminum bromide reacts with chlorine gas to produce aluminum chloride and bromide gas. if we have 9 moles of chlorine gas. how
Luda [366]

Moles of Bromine produced = 9 moles

<h3>Further explanation</h3>

Given

9 moles of Chlorine gas

Word equation

Required

Moles of Chlorine produced

Solution

We change the word equation into a chemical equation (with a formula)

Aluminum bromide reacts with chlorine gas to produce Aluminum chloride and bromide gas

2AlBr₃+3Cl₂⇒2AlCl₃+3Br₂

moles Cl₂ = 9

Maybe you mean, <em>how many moles of Bromine can we produce?</em>

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